<template>
  <el-card>
    <el-table border style="margin: 10px 0" :data="skuArr">
      <el-table-column label="序号" type="index" align="center" width="150px"></el-table-column>
      <!--show-overflow-tooltip:表示当单元格内容过长时，显示一个工具提示来完整显示内容。-->
      <el-table-column label="名称" :show-overflow-tooltip="true" width="250px" prop="skuName"></el-table-column>
      <el-table-column label="描述" :show-overflow-tooltip="true" width="450px" prop="skuDesc"></el-table-column>
      <el-table-column label="图片" width="350px">
        <template v-slot="{ row }">
          <img :src="row.skuDefaultImg" alt="" style="width: 100px; height: 100px" />
        </template>
      </el-table-column>
      <el-table-column label="重量" width="250px" prop="weight"></el-table-column>
      <el-table-column label="价格" width="250px" prop="price"></el-table-column>
      <!--fixed="right":列固定在右侧-->
      <el-table-column label="操作" width="550px" fixed="right">
        <template v-slot="{ row }">
          <el-button type="primary" size="small" :icon="row.isSale == 1 ? 'Bottom' : 'Top'" @click="updateSale(row)"></el-button>
          <el-button type="primary" size="small" icon="Edit" @click="updateSku"></el-button>
          <el-button type="primary" size="small" icon="InfoFilled" @click="findSku(row)"></el-button>
          <el-popconfirm :title="`你确定要删除${row.skuName}?`" width="200px" @confirm="removeSku(row.id)">
            <template #reference>
              <el-button type="primary" size="small" icon="Delete"></el-button>
            </template>
          </el-popconfirm>
        </template>
      </el-table-column>
    </el-table>
    <!--分页器 current-change会把当前页作为参数传给getHasSku, size-change也会把每页条数作为参数传给(但是没使用)-->
    <el-pagination
      v-model:current-page="pageNo"
      v-model:page-size="pageSize"
      :page-sizes="[8, 10, 20, 30, 40]"
      :background="true"
      layout="prev, pager, next, jumper,->,sizes,total"
      :total="total"
      @current-change="getHasSku"
      @size-change="handler"
    />
    <!-- 抽屉组件:展示商品详情 默认方向（direction）：从右到左-->
    <el-drawer v-model="drawer">
      <!-- 标题部分 -->
      <template #header>
        <h4>查看商品的详情</h4>
      </template>
      <!-- 内容部分 -->
      <template #default>
        <el-row style="margin: 10px 0">
          <el-col :span="6">名称</el-col>
          <el-col :span="18">{{ skuInfo.skuName }}</el-col>
        </el-row>
        <el-row style="margin: 10px 0">
          <el-col :span="6">描述</el-col>
          <el-col :span="18">{{ skuInfo.skuDesc }}</el-col>
        </el-row>
        <el-row style="margin: 10px 0">
          <el-col :span="6">价格</el-col>
          <el-col :span="18">{{ skuInfo.price }}</el-col>
        </el-row>
        <el-row style="margin: 10px 0">
          <el-col :span="6">平台属性</el-col>
          <el-col :span="18">
            <el-tag style="margin: 5px" v-for="item in skuInfo.skuAttrValueList" :key="item.id">
              {{ item.valueName }}
            </el-tag>
          </el-col>
        </el-row>
        <el-row style="margin: 10px 0">
          <el-col :span="6">销售属性</el-col>
          <el-col :span="18">
            <el-tag style="margin: 5px" v-for="item in skuInfo.skuSaleAttrValueList" :key="item.id">
              {{ item.saleAttrValueName }}
            </el-tag>
          </el-col>
        </el-row>
        <el-row style="margin: 10px 0">
          <el-col :span="6">商品图片</el-col>
          <el-col :span="18">
            <!-- 轮播图 -->
            <el-carousel :interval="4000" type="card" height="200px">
              <el-carousel-item v-for="item in skuInfo.skuImageList" :key="item.id">
                <img :src="item.imgUrl" alt="" style="width: 100%; height: 100%" />
              </el-carousel-item>
            </el-carousel>
          </el-col>
        </el-row>
      </template>
    </el-drawer>
  </el-card>
</template>

<script setup lang="ts">
import { ref, onMounted } from 'vue'
//引入请求
import { reqSkuList, reqSaleSku, reqCancelSale, reqSkuInfo, reqRemoveSku } from '@/api/product/sku'
//引入ts类型
import type { SkuResponseData, SkuData, SkuInfoData } from '@/api/product/sku/type'
import { ElMessage } from 'element-plus'
//分页器当前页码
let pageNo = ref<number>(1)
//每一页展示多少条数据
let pageSize = ref<number>(8)
let total = ref<number>(0)
let skuArr = ref<SkuData[]>([])
//控制抽屉显示与隐藏
let drawer = ref<boolean>(false)
//存储已有SKU的详细信息 -- 这里ts类型定义为any,而不是SkuData，因为要求显示平台属性值和销售属性值，在SkuData中没有定义
let skuInfo = ref<any>({})
//组件挂载完毕执行
onMounted(() => {
  getHasSku()
})
const getHasSku = async (pager = 1) => {
  //当前分页器的页码
  pageNo.value = pager
  let result: SkuResponseData = await reqSkuList(pageNo.value, pageSize.value)
  if (result.code == 200) {
    total.value = result.data.total
    skuArr.value = result.data.records
  }
}
//分页器每页条数下拉菜单发生变化时触发
const handler = () => {
  getHasSku()
}

//商品的上架与下架的操作
const updateSale = async (row: SkuData) => {
  //如果当前商品的isSale==1,说明当前商品是上架的状态->需要更新为下架。否则else情况与上面情况相反
  if (row.isSale == 1) {
    //下架操作
    await reqCancelSale(row.id as number)
    //提示信息
    ElMessage({ type: 'success', message: '下架成功' })
    //发请求获取当前更新完毕的全部已有的SKU
    await getHasSku(pageNo.value)
  } else {
    //上架操作
    await reqSaleSku(row.id as number)
    //提示信息
    ElMessage({ type: 'success', message: '上架成功' })
    //发请求获取当前更新完毕的全部已有的SKU
    await getHasSku(pageNo.value)
  }
}
//更新已有的SKU
const updateSku = () => {
  ElMessage({ type: 'success', message: '程序员在努力的更新中....' })
}
//查看商品详情按钮的回调
const findSku = async (row: SkuData) => {
  //抽屉展示出来
  drawer.value = true
  //获取已有商品详情数据
  let result: SkuInfoData = await reqSkuInfo(row.id as number)
  //存储已有的SKU
  skuInfo.value = result.data
}
//删除某一个已有的商品
const removeSku = async (id: number) => {
  //删除某一个已有商品的情况
  let result: any = await reqRemoveSku(id)
  if (result.code == 200) {
    //提示信息
    ElMessage({ type: 'success', message: '删除成功' })
    //获取已有全部商品
    await getHasSku(skuArr.value.length > 1 ? pageNo.value : pageNo.value - 1)
  } else {
    //删除失败
    ElMessage({ type: 'error', message: '系统数据不能删除' })
  }
}
</script>

<style scoped>
/*以下都是轮播图样式*/
.el-carousel__item h3 {
  color: #475669;
  opacity: 0.75;
  line-height: 200px;
  margin: 0;
  text-align: center;
}
.el-carousel__item:nth-child(2n) {
  background-color: #99a9bf;
}
.el-carousel__item:nth-child(2n + 1) {
  background-color: #d3dce6;
}
</style>
